—Leander Kahney, "The Cult of iPod," Playlist, November 2, 2005
This has apparently led to what is called 'playlist anxiety'.
The researchers cite an example in which an employee was worried his co-workers might get the wrong impression because he had downloaded songs by teen idol Justin Timberlake and MOR songwriter Michael McDonald for his wife.
Yeow Kai Chai, "You are what you listen to," Straits Times, May 10, 2005
The rise of playlist anxiety isn't new. The phenomenon was noted on college campuses shortly after Apple began offering the ability to stream music from other people's hard drives over local networks.
John Borland, "Got playlist anxiety? You're not alone," CNET News, April 6, 2005
iPod halo effect